document.write( "Question 308861: How much water must be added to dilute 10 quarts of a solution that is 18% iodine so that the resulting solution will be 15% iodine?
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Algebra.Com's Answer #220851 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! How much water must be added to dilute 10 quarts of a solution that is 18% iodine so that the resulting solution will be 15% iodine? \n" ); document.write( "---------------------------------------------- \n" ); document.write( "Equation: \n" ); document.write( "iodine + iodine = iodine \n" ); document.write( "0.18*10 + 0*x = 0.15(10+x) \n" ); document.write( "--- \n" ); document.write( "Multiply thru by 100 to get: \n" ); document.write( "18*10 + 0 = 15*10+15x \n" ); document.write( "3*10 = 15x \n" ); document.write( "x = 2 quarts (amount of water needed in the mixture) \n" ); document.write( "===================================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |